There is more than one artist called John Harrison. 1) John Harrison is composer of the music for George Romero's "Day Of The Dead"(1985) and "Creepshow"(1982), for which Stephen King wrote the script, and Romero directed. 2) John Harrison is an original member of The Watersons, an English folk group from Hull in Yorkshire. Other original members were Norma Waterson, Mike Waterson, and Lal Waterson. John Harrison was their cousin.